SORPTION AND PRECONCENTRATION OF SOME HEAVY-METALS BY 2-MERCAPTOBENZOTHIAZOLE CLAY

被引：65
作者：
DIAS, NL
POLITO, WL
GUSHIKEM, Y
机构：
[1] UNIV SAO PAULO, INST QUIM, BR-13560250 SAO CARLOS, SP, BRAZIL
[2] UNIV ESTADUAL CAMPINAS, INST QUIM, BR-13083970 CAMPINAS, BRAZIL
来源：
TALANTA | 1995年 / 42卷 / 08期
基金：
巴西圣保罗研究基金会;
关键词：
D O I：
10.1016/0039-9140(95)01505-6
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
2-Mercaptobenzothiazole loaded on previously treated clay was prepared, characterized and used for sorption and preconcentration of Hg(II), Pb(II), Zn(II), Cd(II), Cu(II) and Mn(II) from an aqueous solution. The support used was a natural clay previously treated with sulphuric acid solution. Adsorption isotherms of metal ions from aqueous solutions as function of pH were studied at 298 K. Conditions for quantitative retention and elution were established for each metal by batch and column methods. The chemically treated clay was very selective to HG(II) in solution in which Zn(II), Cd(II), Pb(II), Cu(IT) and Mn(II) were also present.
引用
收藏
页码：1031 / 1036
页数：6
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